String mounted bow sight

ABSTRACT

An archery bow peep sight designed to secure to a stranded bowstring. The peep sight is a circular, hollow disk, defined by cylindrical and longitudinal axes, circumferential and interior surfaces, and first and second ends. The disk has a pair of angular grooves extending along the circumferential surface of the disk, at an angle from the cylindrical axis; the disk may also have a uniform groove about its circumference. The disk further has a rectangular post extending in the direction of the cylindrical axis. The peep of the present invention is secured to the bowstring by separating a portion of the string into two strands, placing each strand into an angular groove of the disk, and securing the strands above and below the separation. When installed, a user may align the post of the peep sight in the direction of the target and the front bow sight, with the bow string and the arrow pulled back; releasing the string will cause the arrow to travel in the direction of the target.

BACKGROUND OF THE INVENTION

The present invention regards a novel archery peep sight designed to secure to a stranded bowstring of an archery bow.

Current peep sights used on archery bows are commonly a simple disk, having a central aperture, with angled grooves on the exterior thereof for installation on the bowstring. Design variations among peep sights currently available include material and aperture size. In use, when installed on the bowstring, the aperture of the peep is aligned with the front sight on the bow and the target to allow proper alignment of the arrow and the target. Therefore, the alignment capabilities of currently available peep sights is limited to the size of the aperture; the present invention provides a more accurate alignment of the peep sight with the bow sight and the target by incorporating a finite reference point within the aperture opening.

GENERAL DESCRIPTION OF THE INVENTION

The peep sight of the present invention is a disk, having a central aperture, first and second ends, and interior and exterior circumferential surfaces. The disk further has angular grooves extending along its exterior circumferential surface, from and through the first and second ends, at an angle about the central axes of the disk. The angular grooves are sized and have a curved shape to receive and retain the bowstring. In some embodiments the disk has a uniform circumferential groove in its circumferential surface.

The disk further has a rectangular post along its cylindrical axis, extending from the interior surface of the disk to about its cylindrical axis. The post may extend along the depth of the disk, from the first end to the second end, or may be positioned at or near one end, or at or near the longitudinal axis of the disk.

The disk of the present invention is integrated into the stranded bowstring by separating a portion of the string into two string groups, and placing one string grouping into one angular groove, and the second string grouping into the opposing angular groove, preferably so that the rectangular post extends up from the interior surface of the disk. The bowstring is secured above and below the separated portion, so that it remains unified at all other portions of the bowstring, and the portion that is separated is sufficiently short to accommodate and securely hold the peep sight.

In use, when the peep sight is secured on the bowstring, the bowstring and arrow are pulled back and the user can look through the peep sight and align the rectangular post of the peep sight with the front bow sight and the intended target; a steady release of the arrow from the bow should result in accurate trajectory thereof towards the target.

BRIEF DESCRIPTION OF THE DRAWINGS

FIGS. 1A, 1B and 1C show various views of an embodiment of the present invention.

FIGS. 2A, 2B and 2C show various views of an embodiment of the present invention as installed on an archery bow.

DETAILED DESCRIPTION OF THE INVENTION

As shown in the Figures, the peep sight of the present invention is a hollow disk 1, made preferably from a lightweight material, such as aluminum or plastic. In some embodiments the disk is manufactured from thermoplastic carbonates such as polycarbonates or acrylonitrile butadiene styrene (ABS) plastic; in other embodiments the disk is made from nylon synthetic polymer plastic, or a nylon with glass blend, for example a nylon with a 14% glass mixture. The disk is defined by a depth D, a cylindrical axis L1, a longitudinal axis L2, circumferential exterior S1 and interior S2 surfaces, and first and second ends E1 and E2. The depth D of the disk is between 5 and 6 mm; in some embodiments it is between 5.5 and 5.6 mm; in some embodiments it is about 5.56 mm. In some embodiments of the present invention the disk has a first radius R1 (from the cylindrical axis to the interior circumferential surface S1) between about 4.5 mm and 4.7 mm, and a second radius R2 (from the cylindrical axis to the exterior circumferential surface S2) between about 7.25 mm and 7.75 mm, with the disk having a thickness T between about 2.8 mm to 2.9 mm. The edges of the ends of the disk may be slightly rounded.

The disk 1 has a pair angular of grooves AG on opposing sides of the disk, extending along its circumferential surface, from its first end E1 to its second end E2, with the axis of said angular groove G1 being at an angle α of about 38 degrees from the cylindrical axis L1, about the latitudinal axis L2 of the disk 1. The angular grooves AG are sized to receive and retain the bowstring, having a depth of between about 1.3 mm and 1.4 mm. The angular grooves may be rounded at their interior and exterior edges.

In some embodiments the disk has a uniform circumferential groove CG about its circumference, defining a first disk portion D1 and a second disk portion D2. The first disk portion D1 and the second disk portion D2 may have equal dimensions. In some embodiments the groove CG has a width of about 1.85 mm to about 1.86 mm, and a depth of between 1 mm and 1.1 mm. The angular grooves, having a depth greater than the circumferential groove, will extend through the surface of the circumferential grooves so that when the string is inserted into the angular grooves, the circumferential groove does not interfere with the string. The groove CG and the interior circumferential edges of disk portions D1 and D2 may be slightly rounded.

The disk 1 has a rectangular post P extending from the interior surface of the disk S2 to about its cylindrical axis L1. In some embodiments the disk extends from the first end E1 to the second end E2 of the disk. Preferably the post has a width of 2.35 mm to 2.45 mm.

Preferably, the ends E1 and E2 of the disk have an anti-glare (rough) surface to reflect light and assist in handling the disk.

The peep sight of the present invention may be molded as a single unit, with or without additional machining; alternatively, the components of the peep sight may be molded as one or more units, and secured together.

The peep sight of the present invention is integrated into the stranded bowstring by separating a portion of the string into two approximately equal string groups, and placing each string grouping into respective angular grooves AG, preferably with the post in the upward position (positioned so that the post extends upward from the disk). The bowstring is secured above and below the separated portion by bow serving string, so that it remains unified at all other portions of the bowstring, and the portion that is separated is as short as possible to accommodate and securely hold the peep sight.

In use, when the peep sight is secured within the bowstring, the bowstring is pulled back and the user can look through the peep sight and align the rectangular post with the front bow sight and the intended target; a steady release of the arrow from the bow should result in accurate trajectory thereof towards the target.

Embodiments of the present invention, including preferred embodiments, have been presented for the purpose of illustration and description. They are not intended to be exhaustive or to limit the invention to the precise forms and steps disclosed. The embodiments were chosen and described to provide the best illustration of the principles of the invention and the practical application thereof, and to enable one of ordinary skill in the art to utilize the invention in various embodiments and with various modifications as are suited to the particular use contemplated. All such modifications and variations are within the scope of the invention as determined by the appended claims when interpreted in accordance with the breadth they are fairly, legally, and equitably entitled. 

1. An archery peep sight for mounting to a stranded bowstring of a bow, for use in conjunction with a front bow sight attached to the bow for aligning the with a target, the peep sight comprising: a circular disk having a cylindrical axis and a longitudinal axis extending transverse to the cylindrical axis, said disk comprising: a circumferential interior surface forming a central aperture through which a user can view the bow sight and the target, the circumferential interior surface being coaxial with the cylindrical axis; a circumferential exterior surface coaxial with the cylindrical axis; a first end surface extending between the circumferential interior and exterior surfaces; and a second end surface spaced from the first end and extending between the circumferential interior and exterior surfaces; a rectangular post integrally formed with the circular disk within the central aperture and extending from the circumferential interior surface, the rectangular post having a height extending to the central cylindrical axis to thereby create a normally obstructed view through the central aperture that extends along the longitudinal axis from the circumferential interior surface to the central cylindrical axis, the rectangular post being aligned with the front bow sight and the target when the bowstring is drawn back to an aiming position, thereby resulting in accurate trajectory of an arrow towards the target; and first and second exterior grooves formed in opposite sides of the circumferential exterior surface of the disk, and extending at an angle with respect to the cylindrical axis, the first and second exterior grooves being arranged to receive first and second strand groups of the stranded bowstring to thereby secure the peep sight to the bowstring.
 2. The archery peep sight of claim 1, wherein the disk further comprises and further comprising a circular groove formed in the circumferential exterior surface to thereby define a first disk portion and a second disk portion.
 3. The archery peep sight of claim 1, wherein said rectangular post extends from the first end surface to the second end surface of the disk.
 4. The archery peep sight of claim 1, wherein said rectangular post has a width of between about 2.35 mm and 2.45 mm to thereby create a normally obstructed view through the central aperture that extends along a lateral direction transverse to the cylindrical axis and the longitudinal axis.
 5. The archery peep sight of claim 1, wherein the first and second exterior grooves extend along the surface of the disk at an angle of about 38 degrees from the cylindrical axis.
 6. The archery peep sight of claim 1, wherein the disk has a depth of between about 5 mm and 6 mm.
 7. The archery peep sight of claim 1, wherein the disk has a first radius from the cylindrical axis to the circumferential interior surface of between about 4.5 mm and 4.7 mm, and a second radius from the cylindrical axis to the circumferential exterior surface of about 7.25 mm and 7.75 mm.
 8. The archery peep sight of claim 1, wherein the disk has a thickness of between about 2.8 mm and 2.9 mm.
 9. The archery peep sight of claim 1, wherein the first and second grooves have a depth of between about 1.3 mm and 1.4 mm.
 10. The archery peep sight of claim 9, and further comprising a circular groove formed in the circumferential exterior surface to thereby define a first disk portion and a second disk portion, and wherein the first and second grooves cut into the circular groove where the circular groove intersects with the first and second grooves.
 11. The archery peep sight of claim 10, wherein the first and second disk portions have equal dimensions. 